Physics Instruments

Travelling Microscopes

Travelling Microscopes

ABBOMEDTM We are renowned as one of the preeminent Travelling Microscopes Manufacturer & Exporters from India. The Travel Lab Microscopes offered by us includes a heavy cast iron base fitted with three leveling screws with the top machined over which slides a gun metal carriage. A microscope tube is attached with a 10x Ramsaden Eye Piece with cross line graticule & an Achromatic 2"or 3" focal length objective of high quality. The Motorized Traveling Microscopes travel 17 cms horizontally and 14 cms vertically and guarantees accurate vernier reading 0.02 or 0.01 mm. with swing out magnifier for reading vernier.

Spectrometer

Spectrometer

Laboratory Spectrometer offered by us are extensively demanded in the market due to its robust structure that includes telescope & collimator that have fine rack & pinion motion and are mounted on a stable heavy C. I. base with three leveling screws. Customers are eased with the availability of the Student Spectrometer in Brass and Stainless Steel Scale in both the sizes of 15.0 cm (6") and 17.5 cm (7") of protected circle. Moreover, we are listed at the apex in the list of the preeminent Scientific Spectrometer Suppliers in India.

Newton's Ring Microscope

Newton's Ring Microscope

ABBOMEDTM We are well-established as one of the trusted Newton's Ring Standard Microscope Manufacturers & Exporters in India. The Newton's Ring Microscope offered by us is extensively demanded in the market as no alternative is available in terms id quality and performance. Moreover, some of the key features of the Newton's Ring Apparatus, offered by us, are as mentioned below :

•Compact instrument with full arrangements for conducting Newton's Ring experiment.

Rheostats

Rheostats

Power Rheostats are made with a variety of resistance & current carrying capacity so as to satisfy every need. They are wound with heavily oxidized eureka resistance wire upon a porcelain tube dia 44 mm aprox. The tube is carrying upon Bakelite rider and the heavy duty sliding contact is of the phosphor bronze with brass rod. 4 mm socket terminals are fitted, allowing for rheostat or potentiometer connection. Total resistance and maximum current capacity is marked on the slider. Total Permanent current loading should not exceed 75% of the marked values. The actual resistance of Wire Wound Rheostats shall be +20% -5% of the rated resistance as per our resistance chart. (as per ISI specification no. IS : 9051 S. No. 10.3), we are recognized as one of the major Electronic Rheostats Manufacturers and Exporters from India.

Resistance Box

Resistance Box

Resistance Box (Plug Type) is of a superior quality Heavy Brass Metal Blocks Size 7/16" are bound to Bakelite Plate by means of nuts and screws securing rigid fixation and eliminating any chance of contact error creping due to loosening of plugs and lugs which are cut to fine taper and are interchangeable. Plug heads are machine moulded, of heavy insulated Bakelite in beautiful shapes. The boxes are made of Teak-wood and nicely polished. We are renowned as one of the staggering High Power Resistance Box Suppliers in India.

Great care is taken in preparing the wire wound resistance. Selected double Covered Eureka Wire is wound in Bakelite spools. Sufficient ageing and Heat Treatment is processed through to avoid any moisture effects. Solder Joints are sealed after calibration. The Decade Resistance Box is calibrated on imported Testing Bridge Accuracy ± 0.1%.

Battery Eliminator

Battery Eliminator

Battery Eliminator offered by us is ideally designed to be safe & reliable source of low voltage D.C., for use in class rooms. Both, Universal DC Battery Eliminator and Universal AC Battery Eliminator are available in the market. Allow teachers to conduct experiments requiring a variety of direct voltages while avoiding the decreased characteristics of dry cell. Comprising a heavy duty transformer wound with copper wire with high lamination to avoid losses, selector switch & bridge rectifiers (consists of full wave silicon diode bridge rectifier) with jewel light and safety fuse. We are also reputed amongst the dependable Drill Battery Eliminator Manufacturers, based in India.

Capacitance Boxes

Capacitance Boxes

Capacitance Boxes offered by are made in single or more dials having condensers joined in parallels. Each dial of Portable Capacitance Boxes contains ten segments, high grade paper condenser housed in a teak wood case with engraved Bakelite top or in Metal case with Screen Printed Top. Moreover, we are listed amidst the preeminent Decade Capacitance Boxes Exporters and Suppliers in India.

Function Generator

Function Generator

The Function Generator is capable of Providing SINE, SQUARE, TRIANGLE. Low Distortion Function Generator has linear Frequency Scale very low Distortion and constant signal amplitude with the output Signal Symmetry about Zero. The DC coupled output provides square wave without any appreciable Sag at low frequency. It has maximum 20 VP/P amplitude. The output is protected against short circuit. It has a offset control provided to shift the base line of signal by ± 10 volts. The continuously variable DC offset control further enhances the versatility of the instrument. The equipment is used in Audio Electronics and other Laboratory & Research Work. Moreover, we are looked upon as one of the major Portable Function Generator Manufacturers & Exporters in India.

Physics Lab Kit

Physics Lab Kit

Our physics lab kits are a combination of modern technology appropriate for higher science educational purposes. These kits are made using quality tested electronic components in adherence with international quality standards. The physics lab kits have been widely appreciated for precise measurements, reliability and durability.

Apparatus To Show On Conductor In A Magnetic Field

Product description:

Comprising a strong U-shaped magnet and a pair of brass rails with 4 mm socket terminals. A brass axle with plastic discs is free to roll along the rails and completes the electrical contact between them. When the axle is placed on the rails between the poles of the magnets, and power supply unit is connected, the axle is repelled and rolls along the rails away from the center of magnetic field. Dimensions 175x60x58 mm.

Aepinus Condenser

Anemometer, Cup Counter As Per Isi

Product description:

The instrument has a cup wheel consisting of three conical cups in a horizontal plane. The cup wheel spindle is of stainless steel and connected worm gearing to a revolution counter mounted in a water proof housing. By observing the counter reading at the beginning and end of any period of interest the average wind speed during the interval can be calculated. The counter observing window is sloped to permit easy reading when mounted on the mast.

Baby Weighing Balance

Product description:

ABBOMEDTM A single beam scale, robust steel body with epoxy powder coated parts. The beam carries a sliding weight to indicate the weight from 0 to 5kg in divisions of 20 grams each. One hanger and one slotted mass is provided to increase the capacity of the balance. When only the hanger is suspended from the end of the beam the capacity increases to 10 kg and the reading starts from 5 kg onwards on the scale up to 10 kg. On adding the slotted mass on to the hanger the capacity increases to 15 kg and the reading starts from 10 kg onwards on the scale up to 15 kg. The tray is detachable and can be easily replaced in position by sliding on to fixed plate. Second scale is provided which reads 0 to 1 kg in division of 10 gms. Making the total capacity of balance 16 kg in to 10 gms.

Bar And Gauge

Product description:

For illustrating expansion by heating and contraction by cooling comprising a mild steel bar 110x10mm (lenght), on rod with wooden handle, overall length approx. 280mm. with metal cast gauge, sliding fit over ends of bar and with hole 10mm bore in one arm.

Barlow's Wheel

Product description:

ABBOMEDTM For demonstrating the conversion of electric energy into mechanical energy. Star-shaped copper disc rotatable vertically on pair of adjustable centers and dipping into mercury trough between the vertical limbs of a small horseshoe magnet on a wood base. Disc adjustable vertically on metal pillar which is connected to one of two terminals mounted on base. The other terminal is connected to the mercury trough. The apparatus will operates on 4 volts at which voltage it takes 1.8 amps, with out battery.

Barometer Syphon

Product description:

ABBOMEDTM For demonstration, mercury column is feasible and scale graduated in Metric and English system. Zero point adjustment is carried by a screw clamp attached to a glass tube, complete fitted on wooden polished, supplied without mercury.

Boyle's Law Simple Form

Product description:

ABBOMEDTM Simple apparatus for demonstration of Boyle's Law, graduated, plastic syringe mounted on wooden block and; lubricated piston of the syringe mounted on another platform. Different weights can be stacked on the top and measurement of pressure volume made.

Braun Electroscope

Product description:

ABBOMEDTM This rugged, sensitive electroscope can accept various accessories to change its capacitance. A sensitive aluminium vane is balanced in a vertical position on a metal support which is insulated from its base. The vane is easily observed and projected on a chalkboard (Light Source, not included) on which an arbitrary scale has been marked. Height without attachments is about 9". Four attachment, each equipped with a banana plug which fits the vane system top, are included : a 1" conducting sphere; a 3" conducting sphere; a proof plane with detachable insulating handle; and an aluminium cup (Faraday ice pail). Attachments can be charged using either our Electrophorus or our Power Supply (not included). With instructions.

Bucket & Cylinder

Product description:

ABBOMEDTM orkutFor demonstrating Archimedes principle, this is a simple form in brass, suitable for class demonstration or individual use. The bucket has suspension loop at the top and hook at the bottom. The cylinder has a suspension hook at one end. Size 6 cm long, overall length when extended 16 cm.

Balance

Product description:

ABBOMEDTM Basic general purpose balance for students. The hangers have double hooks for specific gravity experiments, and pans are detachable. The balance is finished in black colour with chrome plated fittings and mounted on polished wooden base with leveling screws.

Banana Plugs

Bar Breaking Apparatus

Product description:

To show the forces which can be exerted during thermal expansion or contraction. Comprising a heavy cast iron frame 340x120x100mm with slotted end pillars to carry a stout iron bar. The bar is threaded at one end for a large tensioning nut and has holes at the other end to accommodate the cast iron breaking bars. Supplied complete with ten breaking bars.

Boyle's Law Apparatus, Demonstration Type

Product description:

ABBOMEDTMWide bore glass tube closed at top is mounted on a scale 0 to 600 mm. with zero corresponding to the inside of the top end. Air is trapped by coloured oil in a metal pressure chamber fitted with a Bourdon Gauge and a riffled inlet tube with stopcock. With a plastic safety screen over the tube.

Joule's Calorimeter

Product description:

For determination of the specific heat capacity of as liquid by the electrical method. Comprises a nickle plated copper calorimeter 75x50 mm. lagged and enclosed within an outer vessel 100x75 mm. A close fitting ebonite lid is provided with a wire stirrer, and a pair of 4 mm. socket terminals connected to a constantan wire heating coil. The resistance of the coil is approximately 6 ohms and should be used with a current of 0.5A with a maximum of 1A. supplied WITHOUT thermometer.

Collision In Two Dimensions

For demonstrating the principle of conservation of momentum and showing that momentum is a vector quantity having direction as well as magnitude. The apparatus comprises the following items.

1. A curved wooden runway and its highest point, having a groove down which a steel ball may be rolled.2. An object sphere support. This is an adjustable device which attaches to the mounting plate of the runway and will support a ball either exactly opposite the end of the runway for head-on collision or slightly offset for oblique impacts.3. A plumb-bob for making the plumb line.4. Two spheres (steel ball bearing 19 mm. diameter.

Compound Bar

Product description:

To show the differential expansion of metals in a bimetallic strip. Comprising a length of bimetal strip 150x15mm mounted in a wooden handle. The strip is only 1mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx

Product description:

ABBOMEDTM To show the differential expansion of metals in a bimetallic strip. Comprising a length of bimetal strip 150x15mm mounted in a wooden handle. The strip is only 1mm thick so that very little heat is required to produce considerable bending. Length overall 270mm approx.

Concave Mirror, Glass

Conductivity Apparatus

Product description:

The apparatus consists of a fabricated transparent acrylic stand supporting three cells in the form of 50 ml glass beakers.

Electrodes are suspended into the cells, each having a low voltage lamp in series to indicate the current flowing. The three cells and lamps, as a group are connected in parallel and provided with a pair of 4 mm sockets for connection to the external supply. The lamps provided will allow operation on a supply of up to 12V D.C. Dimensions are 215mmx155mmx115mm widthxdepthxheight

Cone, Dissectible

Product description:

Hardwood, polished, 24 H x 15 cm. base dia. Four different sectionscircle, ellipse, parabola, and hyperbola held together by a pin and easily taken apart for demonstration. Can be dissected in 5 parts.

Calorimeter, Joule's

Product description:

ABBOMEDTM For determination of the specific heat capacity of a liquid by the electrical method. The apparatus comprises a nickle-plated copper calorimeter 75x50 mm, fitted with a cork and a heating coil of thin Constantan wire. The resistance of the coil is 6 ohms and the recommended working current is 0.5 A with a maximum of 1A. Electrical connection is by means of a pair of barrel connectors. Supplied without thermometer.

Cell Charger

Charle's Law Apparatus

Product description:

Comprising glass U-shape 15 mm dia with one plain limb 220 mm long one graduated limb overall length 120 mm. Limb graduated 25 to 35 x 0 2ml terminating in a bulb 37 mm dia.with third limb 185 x 6mm (length x bore), jointed at right angles to the plain of the other two. Short length of the rubber tubing with two pinch clips of on short length of glass tubing mounted In end of wide-bo Plain limb with rubber bung. With tall farm beaker 1000 ml capacity and stirrer. All glass parts made from coming glass.

Decade Resistance Box

Product description:

This decade resistance substitution box provides 4 decade ranges from 0 to 11110W with a resolution of 1W. Each decade is selected by a rotary switch. Tapping points are provided across each range to allow the unit to be used as an accurate potential divider. All resistance values are + 2% with a rating of 0.25 W maximum per range.

Demonstration Electric Motor

Product description:

A model of the simplest form of D.C. electric motor, having 2-pole armature wound with enamelled copper wire, and a permanent magnetic field provided by a removable bar magnet. A disc-type commutator is incorporated and external connection to the phosphorbronze bushes is by means of a pair of 4 mm. sockets. The motor will operates on 6-8 Volts D.C.

Demonstration Meter Inter Scale

Product description:

ABBOMEDTM Housed in a ABS plastic case 300x150x300 mm with glass front and rear. Moving coil type with accuracy of + 2.5%. Basic sensitivity of meter is 5 mA, 100mV f.s.d. The meter can be used to demonstrate the working principle of AC or DC ammeters or voltmeters with the interchangeable plastic scales. DIFFERENT DIALS ARE AVAILABLE.

Demountable Transformer

Product description:

ABBOMEDTM A large-scale transformer, ideal for classroom. The coils are fitted with intermediary outputs providing many transformation ratios. Moreover, one of them has a mains cable so that you do not required an external power supply unit.

Consisting of :

A I magnetic circuit made up of highly permeable U-shaped metal sheeting, which can be closed via two clamps with tightening screws.

Digital Stop Clock

Dip Circle

Product description:

ABBOMEDTM The case is made of aluminium, strongly mangetised cobalt steel needle fitted with imported hard axle rolls on knife edges agates and can be clamped when desired by a V clamp, a sensitive spirit level is provided. The tripod stand is provided with three levelling screws.

Demonstration Dynamo

Product description:

ABBOMEDTMThis model uses the same basic assembly as the motor, but is mounted on a baseplate 230 x 90 mm. approx. which also carries a hand-drive pulley 120mm. diameter coupled to the smaller dynamo pulley by a rubber belt to give a step-up ration. Electrical output is via a pair of 4mm. sockets. The model may also be used as a motor on a 6-8 V D.C. supply.

Demonstration Gear System Model

Product description:

ABBOMEDTM A series of models to demonstrate different gearing systems. With transparent slideplates, the gears may easily be seen and where necessary there is an index on the primary and secondary shafts to show the change in the direction of rotation and the relative speed of rotation. A simple three-speed and reverse-gear system using spur gears. Reverse gear is obtained by interposing a small lay-shaft mounted pinion between the two main shafts. Gear selection is by means of a short ball-ended lever.

Demonstration Transformer

ABBOMEDTM With one mains coil 230 to 240 V, 50 Hz, 2400 turns and two interchangeable secondary coils, 65 and 130 turns giving outputs of 6 and 12 V approximately at 2 A maximum.

The laminated iron core is in two sections, 'T' and 'U' with butt joints, the stem of the 'T' having a cross section 24 x 24 mm.

A simple channel and wing-nut clamping arrangement facilitates quick assembly and interchange of coils. The coils are wound on insulating bobbin, with 2-pin connection for mains and 4 mm sockets for the secondary outputs. The number of turns, voltage and amperage is marked on each coil.

The transformer is supplied complete with 2 m of flex and a 2-pin mains connector. Overall dimensions 150x100x130 mm.

Direct Vision Spectroscope

ADV-2 A compact visible spectroscope with wavelength scale which allows the direct reading of spectral length and employs a prism for dispersion. It is also useful for flame test of basic radicals (sodium, strontium, potassium, copper etc.) There is a single eyepiece and independent focussing tube for the graticule, which carries an index at 590mm. with "D", marked right below the scale, (corresponding to the wave length of sodium light) can be calibrated to a known light source by adjustment of knurled screw. The amount of light admitted to the spectroscope can be regulated by a variable slit, adjusted by a knurled ring round the rating tube.

Electric Whirl

Product description:

For demonstrating the effect of electric discharge from points. The apparatus has a 60mm diameter, Three-pointed star wheel with all the points curved in one direction. The wheel rotates freely on a pivot point mounted on a short stand and the stand is provided with a 4mm connection socket on its round moulded base.

Electromagnetism Coil

Electroscope, Pith Ball

Product description:

We have mounted an insulated stand on a solid round base. Over the hook at the stands end you dangle a silk thread with a light pith ball attached to each end. Pith balls react sensitively to static charges like those from a charged friction rod. Comes with 3 strings and six 8mm. pith balls.

Equality Of Pressure In Liquids

Expansion Of Liquids Apparatus

Product description:

For demonstrating the different thermal expansions of various liquids.Comprising five bulb tubes mounted in a frame and supported in a water trough. The frame has a special sliding arrangement with clips hold glass bulbs with tubes. The bulbs can be easily removed and fixed and have a funnel formation on top for easy filling.

Expansion Apparatus

Product description:

Comprising two cast-iron uprights, height 18 cm. linked by two nickel plated rods supporting on expansion bar, length 38 cm. fixed to one upright and resting on a friction pointer placed at the other. With scale reading 0 to 90 deg. With one each aluminium, brass and iron expansion bars.

Falling Bodies Apparatus

Product description:

L-Section launcher with holes for locating two 19mm. diameter steel balls which act as projectiles. Launcher is released by push button and projects one ball forward while allowing the other to fall freely Launching mechanism mounted on wooden block, 180x60x30mm. which may be clamped by bench and has a convenient storage pocket for the balls. Complete with two steel balls.

Fly Wheel

Product description:

About 20 cm. in dia. and 45 mm. wide turned and carefully balanced, mounted on a horizontal shaft, held in ball bearings. The wheel is marked and pointer is fixed to the bracket. The bracket has four holes and can be fixed to the wall.

Fortin's Barometer

Product description:

ABBOMEDTM A superior standard mercury barometer suitable for altitudes upto 600 meters. The barometer has a nominal bore of 7 mm. graduated scales covering 675 to 810 mm. Hg. and 26 to 32 inch Hg. The scale of are screw fastened to metal frame at the top of the tube. A vernier reading 0.05 mm Hg. and 0.002 inch Hg. provided with an adjustment knob is mounted between the two scales. The reservoir has a standard type of adjustment screw and index, and the barometer fitted with –10 to 50 deg. C thermometer mounted on a polished base. Complete with working instructions. Fortin's Barometer

Four-stroke Diesel Engine Model

Product description:

ABBOMEDTM A model of four stroke water -cooled diesel engine. This is of the chain-driven overhead camshaft type and all functional components like camshaft, rock-arms, tappets etc. are clearly demonstrated. The functioning of fuel injection system is also represented. Ignition is shown by means of a miniature bulb, Mounted on base.

Fluid Pressure Apparatus

Product description:

ABBOMEDTM Demonstrates the phenomenon of transmissibility of fluid pressure. For the same force exerted, pressure is inversely proportional to the surface area. The apparatus comprises of the plated brass cylindrical tubes of different diameters, each fitted with piston and connected to each other through a brass tube at their bottom. Pistons have circular disc at the top for loading masses (masses not included). Complete apparatus mounted on a wooden base.

Fly-wheel Unit

Product description:

For use with a large motor/generator and a lamp unit to demonstrate the conversion of electrical energy to kinetic energy and then back again. Comprising an iron flywheel, mounted in cast brackets with bearings. The shaft has an aluminium 'V' pulley for driving with the spring belt supplied.

Force Table

Product description:

To verify the law of composition and resolution of forces consisting of a aluminium table 40cm in dia. its raised rim has a engine divided scale, graduated in 360° mounted on heavy vertical support rod & tripod base provided with leveling screws. Body under study in a ring in center of the table fastened by cords passing over four pulleys attached with the table. Complete with four pulleys, four weights hangers twelve we i g h t s ( 2 x 1 0 gm, 2 x 2 0 gm, 4 x 5 0 gm, 4x100 gm.)

Four Stroke Petrol Engine Model

Product description:

Represents internal structure and operating principles of an air cooled two-stroke engine. All parts in aluminium alloy. Ignition is shown by means of a miniature bulb. Carburetter and fuel supply also sectioned. Mounted on base, with printed diagram showing working.

Hook's Law Apparatus

Hope's Apparatus

Product description:

To show the maximum density of water. Sheet iron cylinder 203x50mm (height x dia.), mounted on a base and encircled midway along its length by a gallery 63x100 mm (height x dia.) Fitted with tubular's to carry thermometers and rubber stoppers.

A Hope's Apparatus, SuperiorB Hope's Apparatus, EconomyThermometers for above in set of 2, Range 0-50°C

Horseshoe Magnets

Hand Magnifier

Product description:

A high quality X30 magnification instrument with builtin illumination and a retractable condenser / daylight filter slide. Accurate focusing is facilitated by the provision of a rotary control. supplied complete with lens - ended bulb and protective case but without batteries.

Hartley's Optical Disc Rotatable

Product description:

ABBOMEDTM A 30 cm. diameter white painted steel disc marked from 0 to 360° at every 1°, with center mark, on a stable cast iron base. The main disc and the lamp house (with 12V, 24W bulb) can be rotated and held in any desired position. With the lamp house, a rotatable disc with single, double, triple and quadruple slits and with adjustable lens carrier with lens for divergent, parallel or convergent light beams is provided. Optical elements provided for reflection are 50x25mm. plane glass mirror and a polished plated metal cylindrical mirror. Optical element for refraction are semicircular, bioconvex, bioconcave, right angle prism and a trapezoidal acrylic blocks. These optical elements have powerful magnets attached for fixing of blocks to the disc.

Holder For Slit Plates

Hook's Law Student

Product description:

This complete apparatus has a 15 cm. adjustable mirror scale, to prevent parallax error, and is graduated in millimeters and mounted on sturdy 30 cm. support rod. A hook supporting a coiled spring with a mass hanger and indicator is attached to the rod. Supplied with slotted weight of 250 gm. capacity.

Horse Shoe Magnets

Housing Shields With Slots

Product description:

Used to eliminate extraneous light from the lamphouses, they are provided as a right and left handed pair of metal, in open-ended cylindrical form, open length-wise to pass over the lamphouse boss and with a slot at one end to permit the light to pass. Finished in matt black.

Intermediate Spectrometer

Product description: This is a robust instrument designed specifically for student use which is capable of very high performance. The main structure is of heavy cast metal, with bright plated fittings. Scale : The 150 mm. diameter circle with protective shield is fixed to the telescope movement and the table is attached to the double ended vernier which reads to 1 minute of arc. Both telescope and table rotation fine adjustment screws, and release of a clamping screws enables adjustment of both movements to be made by hand. Collimator : Mounted on fixed and fitted with 178 mm. focus achromatic objectives, 25 mm. clear aperture. Also fitted is a unilaterally adjustable slit, 7 mm. long. Telescope : Mounted on moveable pillar and fitted with 178 mm. Focus achromatic objective, 25 mm. clear aperture. Also fitted is a 8x Ramsden eyepiece and a glass crossline graticule. Both the telescope and collimator have rack and pinion focussing. Means are provided for levelling the axis of both optical units and for squaring them to axis of rotation. Prism Table : The table is marked with lines to assist placing the prism with respect to the table levelling screws.

Jaeger's Surface Tension

Product description:

Having a wide mouth reagent bottle fitted with a cork having two holes, in one hole a dropping funnel is fitted. Complete with manometer, capillary tube. All mounted on suitable wooden stand. Without aspirator.

Kinetic Theory Model

Product description:

For simulated molecular activity in gases. To understand and study motion and behavior of molecules in gases. An electric motor, running at 4 to 12 V DC vibrates a small platform inside a transparent tube so that a set of many small stainless steel balls is vibrated violently inside the tube. An increase in the violence of vibration simulates an increase in gas temperature and an increase in the weight of the 'float' simulates an increase in gas pressure. Supplied with balls and 2 'floats'.

Lamp And Stand

Product description:

Comprising a 12 volt, 24 watts lamp in a conical lamp house mounted on an adjustable boss. The lamphouse has cut-outs on its side, giving a clear passage for the light while restricting the amount of stray illumination. The assembly is supported on a rod with a triangular cast base.

Latent Heat Of Steam Apparatus

Product description:

The apparatus comprises a thick brass calorimeter approximately 90x65 mm. diameter, a bung with steam inlet and outlet tubes, a felt cover, and a 1100 cm3 tinplate boiler with bung to take the steam tube which a connects to the calorimeter.

Lift Pump

Line Shaft Unit

Product description:

For showing the conversion from electrical energy via mechanical, to potential energy by winding up a weight on a cord. One end of the 6mm. steel shaft carries an aluminium 'V' pulley 56 mm. diameter, and the other end is fitted with a cord anchoring collar. Supplied complete with driving belt.

Linear Expansion Apparatus

Product description:

Consisting of a metal rod, 500mm in length and 4.5mm diameter, enclosed in a well lagged, nickle plated brass tube with three tubules for steam, inlet, outlet and thermometer. The metal rod to be studied is supported in the steam jacket by detachable conical cups situated at each end of the tube. The apparatus is carried on a heavy gauge channel base, at one end of which is an adjusting screw. At the opposite end is a micrometer screw reading to 0.01mm for measuring the expansion. Supplied complete with copper, brass & iron rods but without thermometer.

Liquid Level Apparatus

Product description:

To show that the level of liquid in communicating vessels is constant irrespective of the size or shape of the vessels. The apparatus comprises four glass tubes of different shapes and cross sectional area projecting vertically from a common horizontal tube. The tubes are mounted on a polished wooden base.

Lens Holder

Product description:

Wooden, to take lenses or mirrors up to 76mm diameter. Comprising an upright 100mm high, with a V shape slot to hold a convex or concave lens, mounted on a rectangular base 100x50mm. An index mark is engraved on each end of the base.

Lever Simple Form

Product description:

For introducing the concept of equilibrium leading to an appreciation of the principle of the beam balance. Consisting of a polished boxwood rule .5m in length, divided in centimetres and millimetres on both edges. Drilled every 2 cm.

Light Box And Optical Set

Product description:

This kit is very useful for reflection, refraction, and colour mixing experiments. The light box consists of a light source (12V, 24W lamp), producing convergent, divergent, or parallel beam. On one end, an adjustable cylindrical convex lens (for parallel beam) and on the other end, a triple aperture system for colour mixing experiments (lateral aperture are provided with adjustable hinged mirror). All aperture in the box are provided with vertical channels to hold slits plates and colour filters. The optical set includes:

A. 10 acrylic blocks

B. Set of three mirrors

C. 2 slit black plates one with three narrow slits at one end and one narrow at other end.

D. Black plate with four narrow slits at one end, one wide slit at the other end.

Linear Air Track

Product description:

Angular section aluminium alloy track, length 255cms, with staggered air holes, supported on two light alloy castings positioned 45 cm from each end of the track. One support has a two- point contact and other onepoint contact for lateral and horizontal adjustments for which a knurled screw is provided. Large catapult arms with slots for elastic bands are fitted to each end of the track. A fully fitted to one end of the track enables experiments involving acceleration under a constant force. Identical end caps enable air to be introduced from either end of the track, bung being supplied to close the end not being used. The vehicle buffer attachments and clamping screws are matt black to help interpretation of stroboscopic photographs.

Manometer

Product description:

For use at moderate pressures, fabricated from glass tubing 6mm bore, 8mm outside diameter. Glass manometer with built-in stopcock mounted on back plate. The apparatus is open at both ends and is supplied unfilled, 250mm long, 32mm wide (75mm wide including the side arm)

Materials Kit Solids

Product description:

A variety of materials in the form of rectangular blocks, intended to familiarize the students with the appearance, 'feel', texture hardness and density of a range of common substances. Kit comprises two of each seventeen blocks as below. Blocks, 50x40x30mm.

Mechanical Training Model

Product description:

Highly useful for demonstrating the most fundamental and frequently used mechanism. Very useful for engineering students. All the components are made of high degree of precision. These modules are assembled on transparent perspex sheets to facilitate teaching. Easy to assemble or disassemble.

Millikan's Oil Drop Apparatus

Product description:

Determination of charge on a electron by measuring a known distance on the basis of number of times of fall under gravity, and of rise in uniform vertical electrostatic field in a series of charged oil drops.

Mounted Joule Meter

Product description:

A domestic electricity meter adopted to operate single-phase 2, wire C1.2mAx8.33 A 12V 50 Hz. 0.01 rev./J and dials reading in joules. The meter is mounted on a wooden bench stand input and output socket terminals. The aluminium disc rotates once for every 100 Joules with the consumption recorded on three digits calibrated 100, 1000 and 10000 joules per division respectively. The instrument records a maximum of 99,900 Joules.

Moving Coil Meters

Product description:

Meters are designed for D.C. measurements to meet every need of schools, colleges and technical institutions. All meters are housed in moulded dust proof cases with zero-adjuster and have connections terminals.

Melde's Apparatus

Product description:

Designed to show the effect of vibrations in a stretched cord, and investigate the relationship between frequency, tension and density. In addition the provision of electrical contacts, opened and closed by the vibrating armature, allow the apparatus to be used as high speed changeover switch in. Comprises a thin steel rod armature, mounted in a clamp formed by a pair of 4 mm. socket terminals, so that its free length may be adjusted as desired. An A.C. energizing coil surrounds the armature and a permanent magnet provides the necessary magnetic polarization. The free end of the armature equipped with a small boss and clamping screw for attachment of the cord and also serves as the moving contact when the apparatus is operating as a changeover switch. The complete apparatus is carried upon a box type base 150x80 mm.

Morse Key

Mounted Motor For Solar Cell

Product description:

This is a small low consumption electric motor on a base specially designed to run directly from the output of the solar cell and to illustrate the direct conversion of light energy to electrical and hence to mechanical. The motor spindle carries a simple pulley, 16 mm. diameter, and is capable of raising a mass of at least 4g. when powered by the solar cell.

Newton Meters

Product description:

Plastic, tubular Newton spring balances. Each range is colour coded for convenience, and is graduated in both grams and Newtons. The spring mechanism is clearly visible and zero adjustment is incorporated.

Object Screen

Open Case Form Electroscope

Product description:

Inexpensive Charge Detector with Scale Charge is indicated by deflection of an aluminized plastic straw which rotates freely on the saddle of the conducting rod. The conducting rod is recessed in the metal housing to shield against air currents.

Organ Pipe

Product description:

Stopped, varnished wood, with movable piston marked with the chromatic scale from C (512) to (1024). Overall length when fully extended 840mm. May be used for investing the phenomenon of beats in conjunction with a second pipe.

Physics Instrument

Pair Of Narrow Prism

Product description: Designed to provide a progression of ideas from the principles of refraction in prism to the properties of lenses. Each glass prism is in the form of a narrow isoceles triangles 10x60x20mm. base, heights, thickness. When place base to base a convex lens may be simulated, and a concave lens when vertex to vertex.

Parallelogram Of Forces Apparatus

Product description:

To verify the relationship between forces action at a point. Comprises board 65x50cm, with two aluminium pulleys 50mm dia., on clamp, for mounting in any position. Complete with three hangers iron nickel plated 50 gm. and 12 slotted weights of 50 gms. each.

Pascal's Law Demonstration

Product description:

Pascal's apparatus ; To demonstrate pressure transmission unit, Two graduated glass syringes, pistons having capacities of 100cc and 50cc approx. with a cross sectional area ratio more than 3 to 1, mounted on suitable base.

Photo Electric Cell Unit

Photo Gates And Timer

Product description:

These pair of photo gates is housed in tough moulded cases giving them excellent durability. The lamps operate on 6Volts with a special built in circuitry which prevents lamps from damage in case higher voltage is applied accidently. The photo gates can be connected by 4 mm. sockets to a timer and power supplies.

Powell's Wave Machine

Product description:

For demonstrating longitudinal and transverse motion. Consisting of a number of eccentric disc supporting a series of metal rods on revolving the handle, transverse waves are obtained. Longitudinal waves are obtained with bent rods running in metal guide on metal base.

Pulley Bench Clamp Fitting

Product description:

Pulley carried on a two part plastic frame, designed primarily for clamping to the edge of a bench, table etc. With the pulley overhanging the edge and in a vertical plane. The two different sizes are shown in the picture below.

Pulley Single

Pulleys Bench Clamp Fitting

Product description:

Comprising a 50 mm. diameter pulley, carried on a two part aluminium frame, designed primarily for clamping to the edge of a bench, table etc. With the pulley overhanging the edge and in a vertical plane. Overall length of frame (pulley bar) 110 mm. Maximum clamp opening 25 mm.

Pulleys With Universal Clamp

Product description:

A 5 cm. aluminium pulley has a universal frame and can be clamped in any position to a wall, bench, drawing board, corner / edge of a table, or fitted to a retort stand rod of diameter 12.5 mm. Its two clamping screws have bakelite knobs for easy working.

Pair Of Tuning Fork In A Resonance Box

Product description:

For demonstrating the production of beat frequencies. Comprises two nickel plated forks A (426.6) mounted on individual boxes. One fork is provided with adjustable mass by means of which frequency may be shifted from the nominal 426.6 When both forks are sounded a clearly audible 'beat' is produced, its rate d e p e n d i n g u p o n t h e difference in frequency between the forks.

Pascal's Law Apparatus

Product description:

To show that the pressure of liquids depend upon their height and the surface of bottom of the columns and not on the capacities of the vessels, with plastic/glass vessels of four different shapes mounted on leak proof metallic collars, all parts of brass and chrome plated.

Pascal's Law Demonstration

Photo Gates & Leads

Product description:

These pair of photo gates is housed in tough moulded cases giving them excellent durability. The lamps operate on 6 Volts with a special built in circuitry which prevents lamps from damage in case higher voltage is applied accidently. The photo gates can be connected by 4 mm. sockets to a timer and power supplies.

Precision Projection Electroscope

Product description:

Project your measurements onto a screen for a large group to see with this well-made electroscope. Its cylindrical metal case has two parallel plane glass windows, both removable, through which you can shine a light for projection. Close fittings and quality materials insulate the leaf system so it stays charged for several days in dry weather. The case is mounted on a heavy metal base. The Precision Projection Electroscope comes complete. A metal cap is provided for shielding the projecting rod and knob, as well as a 3.5 cm. square piece of gold leaf. Includes instructions and experiments for use in projection or for direct viewing.

Pulley Rod Mounting

Product description:

Comprising a 50 mm. diameter pulley carried on an aluminium boss, 20x20x110 mm. long provided with a hole and clamping screw to accommodate rods up to 13 mm. diameter. Tapped holes are provided so that the pulley may be fitted on to the boss with its axis of rotation in any one of the three planes.

Radiometer

Product description:

Comprising partly evacuated glass bulb approx. 70mm diameter, containing at its center a fine pivot which supports four light weight metal arms. One side of each vane is blackened, the reverse side is bright. Mounted on round base.

Ray Box

Product description:

A ventilated lamp house having an open front with extended sides finned externally for heat dissipation and vertical internal grooves to accommodate a slit plate and cylindrical lens. It has a light source comprising 12 volts, 21 watts lamps in a holder with one meter of twin flex having banana plugs. Complete with metal plate having single and triple slits and whitened on one side and other side black matt. Operates on 12 volts power supply. Without lens.

Rheostats

Product description:

For use as series resistors or potentiometers. Open type slide wire type with a variety of resistance and current carrying capacity. Copper-nickle alloy wire is oxidized to provide perfect insulation. Three 4mm. socket terminals are provided. Supports are made of metal/Bakelite. Diameter 43 mm.

Ring And Ball

Product description:

An apparatus for demonstrating thermal expansion, comprising a captive brass ball secured to a mounted brass ring by a chain. Ring mounted on rod with a wooden handle. The ball passes through the ring when cold but will not pass through after being heated. Ball dia. 25 mm.

Ripple Tank & Power Supply

Product description:

The ripple tank is a device to illustrate the laws which govern all wave phenomenon using ripples on the surface of water as the prototypes of all transverse waves. Ripple tank illustrates important wave motions like rectilinear and circular. It can also demonstrate refraction, diffraction and interference of water waves. Tank is supported by four legs having levelling screws. Size of the tank is 595x510x70mm supplied complete with rippler assembly, two straight obstacles 130mm long, one straight obstacle 40mm long, curved reflector 200mm radius, transparent refraction plate, wooden wave roller, one pack of rubberbands, water dropper, sponge, illuminator, hand stroboscope and suitable power supply. It is supplied with instruction manual.

Rising Table

Product description:

Having a cast aluminium 4" dia table with adjustable stand. Maximum height capacity 12". All metal having brass table of 10 cm. dia with three leveling screws. Coarse and fine height adjustment are provided, very superior and an ideal apparatus.

Ripple Tank Power Supply

Rising Table With Capillary Tube

Product description:

The apparatus comprise metal frame, on which four capillary tubes of 10cm. long and of different internal diameters are clamped with the help of small metal brackets. The 9 mm. rod is also attached to metal plate, so that complete clamp can be h e l d i n a n y s t a n d f o r determining the surface tension of liquid by capillary rise method. Its having a cast aluminium 4" dia table with adjustable stand. Maximum height capacity 12".

Spouting Cylinder

Product description:

For demonstrating the principle that the pressure increases with depth. Comprising of a 60 mm. metal pipe with 3 orifices of the same size at different heights down one side. The cylinder is 400 mm. high.

Stand For Optical Bench Accessories

Steam Engine Model

Product description:

Operation of a commercial steam engine is well illustrated with this working model. The extra large size unit is provided with a horizontal boiler with a whistle, safety valve, steam gauge, on metal base. Operates on 220V A.C. 50 Hz.

Steam Generator

Product description:

Cylindrical copper vessel 180x115 mm (height x dia.), with filling tube, steam vent and vertical tube terminating the chute passing through side of vessel. Brass tube, a sliding fit in the central tube, to carry thermometer. Lower end cut at an angle to seal the chute.

Steam Generator

Product description:

Cylindrical copper vessel 180x115 mm (height x dia.), with filling tube, steam vent and vertical tube terminating the chute passing through side of vessel. Brass tube, a sliding fit in the central tube, to carry thermometer. Lower end cut at an angle to seal the chute.

Surface Tension Balance, Searle's

Product description:

A horizontal frame is mounted on a rod fitted to a base & carries a steel wire stretched across it, the tension of which can be adjusted by a tightening screw. A light metal pointer with a counterpoise is attached to the centre of the wire clamp. A pan is hung from a notch in the pointer and has a hook at its underside from which can be suspended a light weight rectangular frame or a metal clip to hold a micro slide edge. The tip of the pointer moves over a graduated scale. With rectangular wire frame, slide clip, six micro slides & 3 meters of spare wire.

Spring Unit Of Mechanical Model

Product description:

For showing potential energy in a wound-up spring and its conversion to electrical energy by driving a dynamo and lighting a lamp. May also be used to wind up a weight on a cord showing the change from potential energy to kinetic and back to potential in the raised weight. The steel shaft carries a clock spring with a free wheel device and winding ratchet, also an aluminium 'V' pulley 56 mm. diameter. One end of the shaft overhangs the base for use as line shaft when winding up a weight. Dimensions 220 x 100 x 100 mm. high. Supplied complete with driving belt.

Thermopile

Product description:

It consists of 12 pairs of Bismuth and Antimony bars joined together is series with insulation between them. The couples thus arranged are enclosed in a brass frame having two terminals connected to the Bismuth and Antimony poles. Complete with nickleplated brass cone and mounted on an adjustable stand.

Torsion Apparatus, Horizontal

Product description:

Searle's pattern. For investigating the torsional rigidity of rods of different materials and to demonstrate that the angle of twist of a given rod over a fixed length is proportional to the applied force. The apparatus consists of two parallel metal support rods with heavy cast metal legs at their either end. One of the legs has ball bearing mounted pulley wheel at its outer side with its spindle carrying split collect chuck for holding one end of test rod while other end of the test rod supported to clamping block on the other leg. When loaded with masses through the nylon cord wound on the pulley wheel, twisting couple if applied to the test rod. Two aluminium scales, graudated 30°-0-30° x 1°, fixed on pillar supports are mounted on the metal supports rods along its length. Also included are two pointers, which when clamped to the test rod along its length and adjacent to the scale, indicates the torsion produced in the rod at that point. Supplied complete with two test rods, one each of brass and steel, nylon cord and hook for carrying masses, but without masses.

Thermal Conductivity Of Copper, Searle's Apparatus

Product description:

Cylindrical copper rod about 300 mm. length 25mm. diameter, one end containing a steam chamber connected to inlet and outlet tubes, other end of copper rod has cavity connected via thermometer pockets to water intel and outlet tubes. Through two thermometers support tubes 75mm apart are inserted in the rod for finding the temperature at two Points.Fitted in teakwood polished case packed felt with removable front, without thermometers.

Travelling Microscope

Product description:

Colleges, Schools and Industrial laboratories. They are used for accurate measurement of the diameters of different objects. They are also used in Physics Laboratories for more accurate determination of small variation in the liquid levels, Manometers, the refractive index of liquids as well as in surface tension & viscosity experiments.

Tuning Forks, Aluminium

Turbine / Pump Unit

Product description:

For use as a water turbine to drive a generator producing electricity or for use as a pump driven by a motor and raising a head of water to produce potential energy. The rotor has eight 'bucket' blades and is housed in a block turbine chamber with a clear Perspex front. Two inlet tubules (for turbine and pump operation respectively) and one outlet tubule are provided, and the shaft carries a 15 mm. diameter pulley. With driving belt.